使用Terraform部署数据流 [英] Deploy a Dataflow with Terraform
问题描述
我正在尝试在GCloud中使用Terraform部署数据流模板.
I'm trying to deploy a Dataflow template with Terraform in GCloud.
有几本教程，其中包含一些Terraform代码.有2个选项:像以下
There are several tutorial which include some terraform code. There are 2 options:Use module like the following link or use resource like the following link
同时使用这两个选项，我会遇到以下错误:
With both options I have the following error:
Error: googleapi: got HTTP response code 502 with body: <!DOCTYPE html>
<html lang=en>
<meta charset=utf-8>
<meta name=viewport content="initial-scale=1, minimum-scale=1, width=device-width">
<title>Error 502 (Server Error)!!1</title>
<style>
*{margin:0;padding:0}html,code{font:15px/22px arial,sans-serif}html{background:#fff;color:#222;padding:15px}body{margin:7% auto 0;max-width:390px;min-height:180px;padding:30px 0 15px}* > body{background:url(//www.google.com/images/errors/robot.png) 100% 5px no-repeat;padding-right:205px}p{margin:11px 0 22px;overflow:hidden}ins{color:#777;text-decoration:none}a img{border:0}@media screen and (max-width:772px){body{background:none;margin-top:0;max-width:none;padding-right:0}}#logo{background:url(//www.google.com/images/branding/googlelogo/1x/googlelogo_color_150x54dp.png) no-repeat;margin-left:-5px}@media only screen and (min-resolution:192dpi){#logo{background:url(//www.google.com/images/branding/googlelogo/2x/googlelogo_color_150x54dp.png) no-repeat 0% 0%/100% 100%;-moz-border-image:url(//www.google.com/images/branding/googlelogo/2x/googlelogo_color_150x54dp.png) 0}}@media only screen and (-webkit-min-device-pixel-ratio:2){#logo{background:url(//www.google.com/images/branding/googlelogo/2x/googlelogo_color_150x54dp.png) no-repeat;-webkit-background-size:100% 100%}}#logo{display:inline-block;height:54px;width:150px}
</style>
<a href=//www.google.com/><span id=logo aria-label=Google></span></a>
<p><b>502.</b> <ins>That’s an error.</ins>
<p>The server encountered a temporary error and could not complete your request.<p>Please try again in 30 seconds. <ins>That’s all we know.</ins>
on .terraform\modules\dataflow-job\terraform-google-modules-terraform-google-dataflow-722fc1d\main.tf line 17, in resource "google_dataflow_job" "dataflow_job":
17: resource "google_dataflow_job" "dataflow_job" {
我尝试从本地计算机以及GCP内的云外壳运行.
I have tried running from my local computer and also from the cloud shell inside GCP.
问题应该出在数据流模块中，因为我还尝试创建其他资源，例如存储桶和计算引擎，并且它可以正常工作.
The problem should be in the dataflow module, because I also tried to create other resource like a bucket and compute engine and it works without any problem.
在运行terraform脚本之前，数据流模板已存储在存储桶中.
The dataflow template is storaged in a bucket before I run the terraform script.
Terraform版本:0.12.19
Terraform version: 0.12.19
代码:
main.tf
variable "project_id" {}
<...>
provider "google" {
version = "~> 2.8.0"
region = var.region
}
resource "google_dataflow_job" "dataflow_job" {
project = var.project_id
region = var.region
zone = "${var.region}-a"
name = var.project_name
on_delete = "cancel"
max_workers = var.max_workers
template_gcs_path = var.template_location
temp_gcs_location = "gs://${var.gcs_location}/tmp_dir"
service_account_email = var.controller_service_account_email
parameters = {
inputPubSub = var.input_PubSub_subscription
outputPubSub = var.output_PubSub_subscription
}
machine_type = var.machine_type
}
terraform.tfvars
<...>
template_location = "gs://www/zzz/template"
gcs_location= "gs://www/yyy"
<...>
To test if my code is wrong, I also tried directly from the code of link and also the same error.
我是否缺少添加到代码中的依赖项?
Am I missing any dependence to add to the code?
推荐答案
请注意，您已将 temp_gcs_location 声明为"gs://$ {var.gcs_location}/tmp_dir" ，然后在 terraform.tvars 中将 gcs_location 设置为"gs://www/yyy" (因此， gs://前缀出现两次).无论如何，应该启动该作业，但之后创建失败.
Note that you have declared temp_gcs_location as "gs://${var.gcs_location}/tmp_dir" but then, in terraform.tvars you set gcs_location as "gs://www/yyy" (so the gs:// prefix appears twice). In any case, the job should be launched but then fail to create.
我用以下版本做了一个最小的例子:
I made a minimal example with the following versions:
$ terraform --version
Terraform v0.12.20
+ provider.google v3.5.0
并使用Google提供的单词计数模板.我的 main.tf 文件是:
and using the Google-provided word count template. My main.tf file is:
variable "project_id" {
type = string
description = "GCP Project ID."
}
variable "gcs_location" {
type = string
description = "GCS bucket name (no gs:// prefix)."
}
provider "google" {
project = var.project_id
region = "us-central1"
zone = "us-central1-c"
}
resource "google_dataflow_job" "wordcount" {
name = "wordcount"
template_gcs_path = "gs://dataflow-templates/latest/Word_Count"
temp_gcs_location = "gs://${var.gcs_location}/temp"
parameters = {
inputFile = "gs://dataflow-samples/shakespeare/kinglear.txt"
output = "gs://${var.gcs_location}/wordcount/output"
}
}
和 df.tfvars (更改为适当的值):
and df.tfvars (change with the appropriate values):
project_id = "PROJECT_ID"
gcs_location = "BUCKET_NAME"
我通过以下方式运行它:
I run it with:
terraform apply -var-file="df.tvars"
作业成功创建:
google_dataflow_job.wordcount: Creating...
google_dataflow_job.wordcount: Creation complete after 3s [id=2020-01-27_...]
让我知道这是否有帮助.
Let me know if this helps.
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